Teacher:In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.
Teacher: Now, understand the problem? Solve this instance: I am so glad there is a vending machine just outside from my Math classroom.  I woke up late and didn't have a chance to eat breakfast it's 10:00 am and I am hungry I need to get food before lunch! At my morning break I head directly to the courtyard and to the  vending machine. I pull the seven quarters out of my pocket, put it into the money slot of the vending machine and push the numbers one, three, six and the letter A.  This is the code for my favorite go to snack, chocolate covered donuts with sprinkles of coconut and almonds. This morning I am extra hungry and have found five more quarters which is enough for a container of chocolate milk.  I reach into the machine and grab my purchased donuts.  I add the five quarters and press the numbers two, four, three and the letter M.  I grab the container of milk and head over to a bench and dig into my snack. 
Question: How much did their purchase cost?
Student:
$3 total